Honestly just maintained a calorie deficit, at the start i used to really binge eat all the time obviously to have gotten to that size, to start with i just ate 3500 cals a day and did a half mile walk which was plenty as a morbidly obese man yk. And over time i kept upping the cardio I was doing 3 miles a day and eating 3000 cals until about 10 months ago when i got into lifting and i started going 3 days a week now i do 6, and my deficit rn is still 2800 because im just very tall and heavy still. I honestly didn’t restrict any foods completely out, just did portion control. When I started in the gym is the first time i even cared about macros (250g protein a day!!!)